書式
getVertexCount()
説明
ライン（線分）の頂点数を返します。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Maps API2 Sample</title>
<script src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAasAJryKxWJnBFVJa487d9hTHGAxTVT7IRADYa-JdYz7xQ8IQZBSthgDZdggYpQHsmm6WYtHstQFfLA" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
var map, polyObj;
window.onload = function() {
map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(37,136), 5,G_NORMAL_MAP);
map.addControl(new GLargeMapControl());
map.addControl(new GScaleControl());
var points = [new GLatLng(35, 136), new GLatLng(39, 138), new GLatLng(30, 140) ];
polyObj = new GPolyline(points, "#ff0000", 6, 0.8);
map.addOverlay(polyObj);
}
function checkCount()
{
alert(polyObj.getVertexCount());
}
//]]>
</script>
</head>
<body>
<div id="map" style="width: 500px; height: 400px"></div>
<form>
<input type="button" value="頂点数を表示" onClick="checkCount()" />
</form>
</body>
</html>